Issue #9629 -- permit freezing `&mut` found within an `&` pointer
Address nits for PR for #9629
Make main pub in test case (cc #9629)
Fix up float highlighting in Vim.

This fixes a regression introduced in #10793.

Having a colorscheme which highlights Float the same as Number (I
believe most do), I hadn't noticed that having the special case of "5."
floats (which was one of the added features in #10793) last made it take
precedence, and so it was left to @thestinger to notice it.

The regression meant that in `5.0`, the `5.` was a `rustFloat` (linked
by default to `Float`) and the `0` was a `rustDecNumber` (linked by
default to `Number`), and for `5.0f32` the `5.` was a `rustFloat` and
the `0f32` was a second `rustFloat` (and thus appeared correctly, though
for the wrong reason).
Vim keyword highlighting improvements.

- Removed the `log` keyword;
- Removed keyword duplicates;
- Highlighted `const` as `Error` rather than `StorageClass`; and
- Highlighted all the reserved keywords as `Error` rather than as
  `Keyword`.

(As usual, these highlightings can be overridden if desired.)
Fix test case harder (cc #9629)
Deduplicate in syntax::parse::token with a macro.

I also renumbered things at the same time; ``in`` was shifted into its
alphabetical position and the reserved keywords were reordered (a couple
of them were out of order).
Remove the following unused special identifiers:

- underscore           ("_")
- unary                ("unary")
- not_fn               ("!")
- idx_fn               ("[]")
- unary_minus_fn       ("unary-")
- item                 ("item")
- block                ("block")
- stmt                 ("stmt")
- pat                  ("pat")
- expr                 ("expr")
- ty                   ("ty")
- ident                ("ident")
- path                 ("path")
- descrim              ("descrim")
- clownshoe_stack_shim ("__rust_stack_shim")
- blk                  ("blk")
- c_abi                ("C")

(And, of course, renumber everything to match.)
Separate strict/reserved keywords, derive bounds.

It's twenty lines longer, but makes for clearer separation of strict and
reserved keywords (probably a good thing) and removes another moving
part (the definitions of `(STRICT|RESERVED)_KEYWORD_(START|FINAL)`).
std::io: Add Buffer.lines(), change .bytes() api

-   `Buffer.lines()` returns `LineIterator` which yields line using
    `.read_line()`.
-   `Reader.bytes()` now takes `&mut self` instead of `self`.
-   `Reader.read_until()` swallows `EndOfFile`. This also affects
    `.read_line()`.
Support imports of the form `use {foo,bar}`

This fixes #10806.
auto merge of #10808 : kballard/rust/use-braces, r=alexcrichton

This fixes #10806.
auto merge of #10856 : klutzy/rust/buf-reader-lines, r=alexcrichton

The `.lines()` method creates an iterator which yields line with trailing '
'.
(So it is slightly different to `StrSlice.lines()`; I don't know if it's worth to synchronize them.)
More small test case fixes. grr. cc #9629.
auto merge of #10787 : nikomatsakis/rust/issue-9629-freeze-andmut, r=pnkfelix

See #9629 for details.

r? @pnkfelix
auto merge of #10888 : chris-morgan/rust/2013-12-10-vim-updates, r=thestinger

### Fix up float highlighting in Vim.

This fixes a regression introduced in #10793.

Having a colorscheme which highlights Float the same as Number (I
believe most do), I hadn't noticed that having the special case of "5."
floats (which was one of the added features in #10793) last made it take
precedence, and so it was left to @thestinger to notice it.

The regression meant that in `5.0`, the `5.` was a `rustFloat` (linked
by default to `Float`) and the `0` was a `rustDecNumber` (linked by
default to `Number`), and for `5.0f32` the `5.` was a `rustFloat` and
the `0f32` was a second `rustFloat` (and thus appeared correctly, though
for the wrong reason).

### Vim keyword highlighting improvements.

- Removed the `log` keyword;
- Removed keyword duplicates;
- Highlighted `const` as `Error` rather than `StorageClass`; and
- Highlighted all the reserved keywords as `Error` rather than as
  `Keyword`.

(As usual, these highlightings can be overridden if desired.)
auto merge of #10891 : chris-morgan/rust/macroize-(or-should-that-be-macroify)-syntax--parse--token-so-that-we-don't-make-mistakes-and-to-reduce-the-maintenance-burden, r=huonw

I also renumbered things at the same time; ``in`` was shifted into its
alphabetical position and the reserved keywords were reordered (a couple
of them were out of order).

Unused special identifiers are also removed in the second part.
Make 'self lifetime illegal.

Also remove all instances of 'self within the codebase.

This fixes #10889.
auto merge of #10897 : boredomist/rust/remove-self-lifetime, r=brson

Also remove all instances of 'self within the codebase.

This fixes #10889.

To make reviewing easier the following files were modified with more than a dumb text replacement:

- `src/test/compile-fail/lifetime-no-keyword.rs`
- `src/test/compile-fail/lifetime-obsoleted-self.rs`
- `src/test/compile-fail/regions-free-region-ordering-incorrect.rs`
- `src/libsyntax/parse/lexer.rs`